It has pipped at the wrong end of the egg. They should pip at the fat end of the egg not the pointy end. It has more than likely pipped on day 19 as it needed oxygen. Usually they pip into the fat end of the egg and into the air sac on day 19 ish, this is called the internal pip. Once the oxygen becomes low and the co2 high this kicks them into making their external pip through the shell to gain more oxygen. As yours is pipped at the pointy end it has missed the internal pip out of the hatching process and will need more time to hatch. They can be internally pipped for up to 24 hours so you need to take this into account with this chick.

It has pipped at the wrong end of the egg. They should pip at the fat end of the egg not the pointy end. It has more than likely pipped on day 19 as it needed oxygen. Usually they pip into the fat end of the egg and into the air sac on day 19 ish, this is called the internal pip. Once the oxygen becomes low and the co2 high this kicks them into making their external pip through the shell to gain more oxygen. As yours is pipped at the pointy end it has missed the internal pip out of the hatching process and will need more time to hatch. They can be internally pipped for up to 24 hours so you need to take this into account with this chick.

I'm on day 10 of my first ever hatch and really glad to see your success. It's encouraging, especially because my eggs are laying on their sides too and I worried if they were supposed to be upright like some incubators hold them.

So many things to worry about with a 1st hatch

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They should be fine on their sides, are you hand turning? That's how I used to do mine before I got a new bator with turner. When I get to lockdown they come out and go back in on their sides to hatch. Good luck with your hatch